I swear I remember seeing a globe in the UI back in the day, but darned if I can remember where it was used. Maybe an icon, or part of a control panel screen. There's a tiny one as part of some Appleshare elements, but I'm thinking there was a large-ish, almost 32×32 one.

Similarly, I'm positive I saw a "multiple user" type UI element composed of two of those profiles used in the info dialog boxes, but can't track that down either.

Since I can't recall specifics, Google image search has not turned up anything useful. I'm pretty sure these were in the Mac OS itself, but maybe I'm thinking of a 3rd party software.